Phone Wired Auto-dialer Safety Alarm System Burglar Security 20 second for Complete Home and Business Security

Description: This item can save four groups of telephone numbers, each phone number can store up to 16 digits. After power down, the phone number, voice is not lost, intelligent judgment function. Specification: Operating voltage: 12V Alarm receiving mode: dialing Wireless reception frequency: none (MHz) Alarm Horn Sound: None (dB) Voice recording length: 20 (S) Save the phone number: 4 (s) Phone number Bit length: 16 (bit) Product Size: Approx. 14 * 3 * 9cm / 5.5 * 1.2 * 3.5in Package Weight: Approx. 258g Package Included: 1 x Telephone Voice Dialer (with mounting accessories)